CN203764096U - Adsorption dehumidification device - Google Patents

Adsorption dehumidification device Download PDF

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Publication number
CN203764096U
CN203764096U CN201320867663.4U CN201320867663U CN203764096U CN 203764096 U CN203764096 U CN 203764096U CN 201320867663 U CN201320867663 U CN 201320867663U CN 203764096 U CN203764096 U CN 203764096U
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CN
China
Prior art keywords
air
desiccant wheel
adsorption zone
temperature
desorption
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CN201320867663.4U
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Chinese (zh)
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金伟力
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Seibu Giken Environmental Protection Energy Saving Equipment Changshu Co ltd
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SAIBU GIKEN KK
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Abstract

The utility model provides an adsorption dehumidification device. According to the adsorption dehumidification device in the utility model, two-stage dehumidification runners are adopted; the first-stage dehumidification runner is provided with an adsorption area and a desorption regeneration area; the second-stage dehumidification runner is provided with an adsorption area, a desorption regeneration area and a purification area; air needed to be dehumidified passes through the adsorption area of the first-stage dehumidification runner and enters the adsorption area of the second-stage dehumidification runner, and the treated air from the adsorption area of the second-stage dehumidification runner serves as dried air and is supplied to a drying room; most of the air from the adsorption area of the first-stage dehumidification runner is introduced into the adsorption area of the second-stage dehumidification runner, and a small part of the air from the adsorption area of the first-stage dehumidification runner is introduced into the purification area of the second-stage dehumidification runner; the part of air from the purification area is heated to a specified regeneration temperature through a regenerative air heater and is introduced into the desorption regeneration area of the second-stage dehumidification runner, and the air from the desorption regeneration area is directly introduced into the desorption regeneration area of the first-stage dehumidification runner.

Description

Absorption type dehydrating unit
Technical field
This utility model is to belong to adopt if the adsorbent such as silica gel, molecular sieve is as the absorption type dehydrating unit of hygroscopic material.Particularly can provide dew-point temperature lower than subzero ultralow dew point dry air manufacturing installation.The following description all refers to the low dew point dry air manufacturing installation of dew-point temperature lower than zero centigrade.
Background technology
While adopting freeze drying mode to produce low dew point dry air, because evaporimeter can freeze phenomenon, so this process is difficult to realize.Therefore, adopt the adsorption and dehumidification mode of the adsorbents such as silica gel or molecular sieve, be applied to more and more in the process of producing low dew point dry air.
Recently, the output of lithium ion battery constantly increases, and in the manufacture process of lithium ion battery, needs dew-point temperature at the dry air ambient of the extreme of subzero 50~100 DEG C.Guarantee this environment, even if adsorption dehumidifier also needs special technological process and technology.
For example, the disclosed absorption type dehydrating unit of patent documentation 1, is provided with two stage dehumidify runner.Both realized energy-conservationly, extremely low dew point dry air can be provided again.Specific practice is, between the entrance of desiccant wheel and outlet, is provided with a bypass air channel and volume control damper thereof, and the sensor of dew-point temperature in a detection room is set simultaneously in drying shed, forms a dew-point temperature regulating loop.The air mass flow of passing through by controlling bypass air channel, realizes the adjusting to dew-point temperature in drying shed.So just can in drying shed, supply with required minimum dry air as required, thereby realize energy-conservation.
[patent documentation 1] JP 2004-8914 communique
[patent documentation 2] Unexamined Patent 8-141352 communique
The disclosed technology of patent documentation 1, although in the problem of device reduction energy consumption, there is improvement,, the further energy-saving and cost-reducing of device is the demand in epoch.Plant energy consumption should be reduced but also will meet, the social demand of product cost can not be improved again.Moreover, the disclosed technology of patent documentation, two stage dehumidify runner all needs to configure regenerated air heater, also exists the problem that energy consumption is larger.
The disclosed technology of patent documentation 2, because second level desiccant wheel has adopted regeneration air circulation technology, two stage dehumidify runner all needs to configure regeneration air air blast, so need two regeneration air air blasts.And same with the disclosed technology of patent documentation 1, desiccant wheel regeneration heater also needs two.
Utility model content
The problem that can not simultaneously realize in order to solve the existing reduction plant energy consumption of prior art and reduction device manufacturing cost, this utility model provides a kind of adsorption dehumidifier, this dehumidifier not only realized low cost of manufacture, energy consumption low, can manufacture extremely low dew point dry air, and dew-point temperature of its outlet dry air keeps steady state substantially.
This utility model solves the problems of the technologies described above adopted technical scheme and is: absorption type dehydrating unit has adopted two stage dehumidify runner.First order desiccant wheel is provided with adsorption zone and desorption and regeneration district, and second level desiccant wheel is provided with adsorption zone, desorption and regeneration district, purifying area.The air that needs dehumidifying through first order desiccant wheel adsorption zone after, enter the adsorption zone of second level desiccant wheel, offer drying shed from second level desiccant wheel adsorption zone processing air out as dry air.From the adsorption zone of first order desiccant wheel air out, except major part imports to the adsorption zone of second level desiccant wheel, also have sub-fraction to be directed to the purifying area of second level desiccant wheel.From purifying area this part air out after regenerated air heater is heated to fixed regeneration temperature, import to the desorption and regeneration district of second level desiccant wheel, directly import to the desorption and regeneration district of first order desiccant wheel from this desorption and regeneration district air out.
The beneficial effects of the utility model are, owing to adopting above-mentioned air flow process, from the desorption purifying area of second level desiccant wheel regeneration air out directly as the regeneration air of first order desiccant wheel, first order desiccant wheel is carried out to desorption and regeneration, and first order desiccant wheel does not need regenerated air heater.Thereby realize energy-conservation.
Further, because first order desiccant wheel does not need to arrange in addition regenerated air heater, the manufacturing cost of whole dehydrating unit can reduce.
Further, due to the regeneration air of first order desiccant wheel, can directly use the regeneration air out from the renewing zone of second level desiccant wheel, so first order desiccant wheel has adopted low-temp recovery type desiccant wheel.Thereby first order desiccant wheel needn't require it to have higher heat resistance, so first order desiccant wheel can adopt relatively inexpensive base material etc., thereby reduce production cost.
In addition, the air inlet of processing air-blaster is connected with the adsorption zone of first order desiccant wheel, is together directed to from the first desiccant wheel adsorption zone air out and the dry air returning from drying shed the air inlet of processing air-blaster.The air outlet of processing air-blaster is connected with adsorption zone, the purifying area of second level desiccant wheel.So only need an air blast just can blow to the processing air of two stage dehumidify runner, so also just reduced the manufacturing cost of device.
Because the adsorption zone of second level desiccant wheel is connected with the air outlet of processing air-blaster, ensure that the second level desiccant wheel of manufacturing extremely low dew point air is in barotropic state.Therefore, even air channel, the encapsulant of device has the leakage of a little, also only there will be the dry air amount of carrying to drying shed to reduce to some extent, and will not occur the problem of the dry air dew point rising causing because extraneous air is sneaked into.
The air inlet of desorption and regeneration air-blaster is connected with the desorption and regeneration district of first order desiccant wheel, second level desiccant wheel, can realize the regeneration air air-supply that an air blast is two stage dehumidify runner.This also can reduce the manufacturing cost of whole device.Simultaneously, because the renewing zone of two stage dehumidify runner is all in negative pressure state, even if there are some air leakages, also just the air of device outside is blended in regeneration air, and the problem that the regeneration air that never has high humility is sneaked into dry air side, so can not affect the dew point of dry air.
Brief description of the drawings
Fig. 1 is the air flow chart of the embodiment 1 of absorption type dehydrating unit provided by the utility model.
Fig. 2 is the oblique view of an embodiment of the 1st grade of desiccant wheel of the present utility model.
Fig. 3 is the oblique view of an embodiment of the 2nd grade of desiccant wheel of the present utility model.
Fig. 4 is the air flow chart with control point of the embodiment 1 of absorption type dehydrating unit provided by the utility model.
[description of reference numerals]
1 first order desiccant wheel
2 second level desiccant wheels
3 adsorption zones
4 desorption and regeneration districts
5 adsorption zones
6 desorption and regeneration districts
7 purifying areas
9 process air-blaster
10 drying sheds
11 return air channels
12 regenerated air heaters
13 rearmounted heaters
14 preposition surface coolers
15 intercoolers
16 desorption and regeneration air-blasters
17 temperature sensors
18 automatic temperature controllers
Detailed description of the invention
The 1st scheme of recording of the utility model claim is: the absorption type dehydrating unit that has adopted two stage dehumidify runner.First order desiccant wheel is provided with adsorption zone and desorption and regeneration district, and second level desiccant wheel is provided with adsorption zone, desorption and regeneration district, purifying area.Need the air of dehumidifying after the adsorption zone through first order desiccant wheel, enter the adsorption zone of second level desiccant wheel, offer drying shed from second level desiccant wheel adsorption zone processing air out as dry air.From the adsorption zone of first order desiccant wheel air out, except major part imports to the adsorption zone of second level desiccant wheel, also have sub-fraction to be directed to the purifying area of second level desiccant wheel.From purifying area this part air out after regenerated air heater is heated to fixed regeneration temperature, import to the desorption and regeneration district of second level desiccant wheel, directly import to the desorption and regeneration district of first order desiccant wheel from this desorption and regeneration district air out.Therefore, first order desiccant wheel does not need regenerated air heater, thereby improves the energy utilization efficiency of device.
[embodiment 1]
According to Fig. 1, embodiment 1 is elaborated below.Figure 1 shows that the air flow chart of the embodiment 1 of absorption type dehydrating unit provided by the utility model.In Fig. 1, the 1st, first order desiccant wheel, the 2nd, second level desiccant wheel.First order desiccant wheel 1, second level desiccant wheel 2 are to be respectively coated with the adsorption and dehumidification runner with alveolate texture that has steeped silica gel or molecular sieve.
Although first order desiccant wheel, second level desiccant wheel are of similar shape.It is but not identical that but the functional areas of the first order, second level desiccant wheel arrange.The functional areas that Figure 2 shows that first order desiccant wheel arrange oblique view, and Fig. 3 is for the functional areas of second level desiccant wheel arrange oblique view.
The Area Ratio that first order desiccant wheel 1 shown in Fig. 2 is provided with adsorption zone 3,4, two functional areas, desorption and regeneration district is about 1:1.Second level desiccant wheel 2 shown in Fig. 3, is provided with respectively such three functional areas of adsorption zone 5, desorption and regeneration district 6 and purifying area 7.
In embodiment 1, the Area Ratio of the adsorption zone 5 of the second level desiccant wheel 2 shown in Fig. 3, desorption and regeneration district 6, purifying area 7 is 6:1:1.Also just say, the central angle of each functional areas is respectively 270 degree, 45 degree, 45 degree.
Get back to Fig. 1 and go on to say, the 9th, process air-blaster, the air inlet of this air blast is arranged on the adsorption zone of first order desiccant wheel and exports the position being connected.Like this, need the outdoor new wind air of dehumidifying under the attraction of air blast, to be directed to the adsorption zone of first order desiccant wheel.In addition, the air inlet of processing air-blaster is also connected with the return airway 11 coming from drying shed, so just can make the return air coming from drying shed mix mutually with first order desiccant wheel adsorption zone outlet air, and be inhaled into together the air inlet of air blast.
The air outlet of processing air-blaster 9 is connected with adsorption zone 5, the purifying area 7 of second level desiccant wheel respectively, is sent to respectively the adsorption zone 5 and purifying area 7 of second level desiccant wheel 2 from blower outlet air out.Enter into regenerated air heater 12 from purifying area 7 air out, the air after regenerated air heater 12 heating enters the desorption and regeneration district 6 of second level desiccant wheel.
From the adsorption zone 5 of second level desiccant wheel 2 air out, through rearmounted heater 13 heating adjust to temperature required after air-supply to drying shed 10.
The 14th, preposition surface cooler, for the cooling air that needs dehumidifying, such as outdoor air.Through the blown adsorption zone 3 of first order desiccant wheel 1 of this preposition surface cooler 14 cooled air.From the adsorption zone 3 of first order desiccant wheel 1 out air enter intercooler 15, in intercooler 15, be cooled after cooling, import to the air inlet of processing air-blaster 9.More than preposition surface cooler 14, the intercooler 15 of narration can be both the evaporimeters of refrigerator, also can adopt the heat exchanger as cooling medium through the cooled non freezing solution of refrigerator.Rearmounted heater 13 can be the heat exchanger that electric heater etc. adds hot-air.
The 16th, desorption and regeneration air-blaster, its air inlet is connected with the desorption and regeneration district 4 of first order desiccant wheel 1.
As previously mentioned, from the adsorption zone 5 of second level desiccant wheel 2 air out through rearmounted heater 13 be heated to temperature required after, air-supply is to drying shed 10.On the other hand, dry air passes through return air channel 11, process intercooler 15, processes air-blaster 9, second level desiccant wheel adsorption zone 5, blows and arrive drying shed 10 again, forms a closed circuit.
The equipment of absorption dehumidifying device provided by the utility model arranges as mentioned above, below its operation process is described.First start the power switch of the CD-ROM drive motor (not having in figure to represent) of processing air-blaster 9, desorption and regeneration air-blaster 16, regenerated air heater 12, rearmounted heater 13 and first order desiccant wheel 1, second level desiccant wheel 2, start the power switch of preposition surface cooler 14, intercooler 15 simultaneously, or supply with the cooling mediums such as non freezing solution after being cooled to preposition surface cooler 14, intercooler 15.
Like this, absorption dehumidifying device entry into service provided by the utility model.After running after a while, the outlet air of device enters shakedown.
Processed air, after preposition surface cooler 14 is cooled, becomes state (2) by the state in Fig. 1 (1), and the humidity of air can reduce.This is while passing through preposition surface cooler 14 because of air, the result of contained portion of water generation dewfall.
Next,, in the blown adsorption zone 3 of first order desiccant wheel 1 of the air of state (2), the dehumidified runner of moisture contained in air adsorbs.Because heat of adsorption occurs, air themperature rises and becomes state (3).
The air of state (3) mixes and becomes state (5) with the return air from drying shed 10 (shown in state (4)).The air moisture content of state (5) is because the air air quantity of state (3) and state (4) is than changing.
The air of state (5) becomes state (6) after intercooler 15 is cooling.Because the dew-point temperature of the air of state (5) is well below the chilling temperature of intercooler, the humidity of this process air does not change, and just air is cooled.
The air of state point (6), becomes state (7) and state (10) after treated air-blaster pressurization.Inferior process is owing to processing the heating of motor and the generation of air compressing heat thereof of air-blaster 9, and air themperature rises to some extent.
When the adsorption zone 5 of the air of state point (7) by second level desiccant wheel 2, in air, contained humidity is adsorbed agent and adsorbs, and obtains the dry air of extremely low dew point.Inferior process is owing to there being heat of adsorption to occur, and the temperature of air can rise, and becomes state (8).
The air themperature of state point (8), be by making it lower than the temperature required state of drying shed 10 to the control of intercooler 15.Doing is like this for by the heat that adds of controlling rearmounted heater 13, and the temperature of the low dew point air that is supplied to drying shed is accurately controlled temperature required.Dry air after rearmounted heater 13 heating becomes state (9).The air temperature control process of state (9) as shown in Figure 4, detect its temperature and compare with setting value by temperature sensor 17, if there is deviation between observed temperature and setting value, automatic temperature controller 18 will send control instruction, the value of exerting oneself to intercooler 15 and rearmounted heater 13 is adjusted, and will ensure like this temperature substantially constant of the dry air that is supplied to drying shed 10.
By processing the blown purifying area 7 of second level desiccant wheel 2 of air-blaster 9 air outlets another strand of air (10) out.Desiccant wheel 2 is carried out cooling in, self heated state (11) that becomes.This process is also an energy recovery process.
The air of state point (11) becomes state (12) through desorption and regeneration heater 12 heat temperature raisings.The air themperature of this state should be able to second level desiccant wheel 2 to carry out sufficient desorption and regeneration.
The air of state point (12) is sent to the desorption and regeneration district 6 of second level desiccant wheel 2.Because the moisture being adsorbed by runner is by the process need desorption warm of desorption and regeneration air institute desorption, the temperature of regeneration air can reduce, and the humidity of regeneration air can rise simultaneously.
The air of state point (13) is directly directed to the desorption and regeneration district 4 of first order desiccant wheel 1, and now the state of air is (14).Conventionally the air of state point (14) is identical with the air of state point (13).
The air of state point (14) enters the desorption and regeneration district 4 of first order desiccant wheel 1.In desorption and regeneration process, because the temperature that consumes desorption hot-air can reduce, its humidity also can rise simultaneously equally.Become state (15) from desorption and regeneration district 4 air out.
The air flow process that absorption dehumidifying device provided by the utility model is designed, can ensure the air out from the desorption and regeneration district 6 of second level desiccant wheel 2, still keep it directly as the required enough temperature and humidities of the desorption and regeneration air of first order desiccant wheel 1.Therefore, first order desiccant wheel does not need independent desorption and regeneration air heater, does not just need extra heat supply yet.In order to ensure under lower regeneration temperature condition, desiccant wheel also can be by complete desorption and regeneration, and first order desiccant wheel has adopted low-temp recovery type desiccant wheel.And the Area Ratio in the adsorption zone of desiccant wheel and desorption and regeneration district is designed to 1:1.
Particularly first order desiccant wheel 1, is mainly used for processing the outdoor new wind of required importing.So the humidity of the adsorption zone outlet air of first order desiccant wheel 1 is not that requirement is very low.So also just needn't require the very high temperature that has of desorption and regeneration air.
Further, owing to being provided with preposition surface cooler 14, for outdoor new wind is carried out to cooling and dehumidifying.So first order desiccant wheel 1 except humidity load be not very large.Particularly, in summer, the humid enthalpy value of outdoor new wind is very high, and by the cooling procedure of preposition surface cooler 14, air humid enthalpy value can reduce a lot.Because nearest Refrigeration Technique is constantly progressive, the efficiency of refrigerator has reached very high value.So the energy that preposition surface cooler 14 consumes, is far smaller than the poor of humid enthalpy value between air condition point (1) and (2), conventionally only have both difference approximately 20%.
In above-described embodiment 1, the equipment of heating use is not set between air condition point (13) and state point (14).If wish that this dehydrating unit starts the dry air that ultralow dew point can be provided afterwards soon, can arrange heater between air (13) and air (14).And, even if air heater is set, also only in the short time in the time that device starts, need.
Once this absorption type dehydrating unit enters normal operation, after the dew-point temperature of air condition point (9) reaches design load, between air (13) and air (14), the power consumption of set heater can be reduced to zero naturally.Thereby realize energy-conservation.
[application possibility of industrial circle]
By the ingenious combination of two stage dehumidify runner, do not enter the device that the extremely low dew point dry air of a kind of manufacture can be also provided, and reduced significantly the energy consumption of dehydrating unit and the manufacturing cost of dehydrating unit self.

Claims (8)

1. an absorption type dehydrating unit, this absorption type dehydrating unit has adopted two stage dehumidify runner, first order desiccant wheel is provided with adsorption zone and desorption and regeneration district, second level desiccant wheel is provided with adsorption zone, desorption and regeneration district, purifying area, need the air of dehumidifying after the adsorption zone through first order desiccant wheel, enter the adsorption zone of second level desiccant wheel, offer drying shed from second level desiccant wheel adsorption zone processing air out as dry air, from the adsorption zone of first order desiccant wheel air out, except major part imports to the adsorption zone of second level desiccant wheel, also have sub-fraction to be directed to the purifying area of second level desiccant wheel, from purifying area this part air out after regenerated air heater is heated to fixed regeneration temperature, import to the desorption and regeneration district of second level desiccant wheel, directly import to the desorption and regeneration district of first order desiccant wheel from this desorption and regeneration district air out.
2. absorption type dehydrating unit as claimed in claim 1, the desorption and regeneration district of first order desiccant wheel exports the equipment configuration being connected with the air inlet of desorption and regeneration air-blaster.
3. absorption type dehydrating unit as claimed in claim 1, together be directed to from first order desiccant wheel adsorption zone air out and the dry air returning from drying shed the air inlet of processing air-blaster, the air outlet of processing air-blaster is connected with adsorption zone, the purifying area of second level desiccant wheel.
4. absorption type dehydrating unit as claimed in claim 2, together be directed to from first order desiccant wheel adsorption zone air out and the dry air returning from drying shed the air inlet of processing air-blaster, the air outlet of processing air-blaster is connected with adsorption zone, the purifying area of second level desiccant wheel.
5. the absorption type dehydrating unit as described in any one in claim 1~4, an intercooler is set between first order desiccant wheel and second level desiccant wheel, by adjusting the cooling capacity of intercooler, make from the temperature of second level desiccant wheel adsorption zone dry air out lower than the desired temperature to drying shed air-supply, then by rearmounted heater and automatic temperature controller, make the temperature of dry air be adjusted to design load and ensure that its variations in temperature, within the scope of tolerance, then blows in drying shed.
6. the absorption type dehydrating unit as described in sharp claim 5, is characterized in that intercooler can be the evaporimeter of refrigerator.
7. absorption type dehydrating unit as claimed in claim 5, it is characterized in that, in the air channel to drying shed air-supply, a temperature sensor for detection of dry air wind pushing temperature is set, the temperature signal that this temperature sensor detects is transported in automatic temperature controller, for regulating and controlling the output signal of intercooler, rearmounted heater, automatically regulate thereby realize wind pushing temperature from dry air to drying shed that supply with.
8. absorption type dehydrating unit as claimed in claim 6, it is characterized in that, in the air channel to drying shed air-supply, a temperature sensor for detection of dry air wind pushing temperature is set, the temperature signal that this temperature sensor detects is transported in automatic temperature controller, for regulating and controlling the output signal of intercooler, rearmounted heater, automatically regulate thereby realize wind pushing temperature from dry air to drying shed that supply with.
CN201320867663.4U 2013-12-26 2013-12-26 Adsorption dehumidification device Expired - Lifetime CN203764096U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633791A (en) * 2015-01-14 2015-05-20 杭州福达除湿设备有限公司 Rotary dehumidification system for lithium battery production and dehumidification method thereof
CN106196346A (en) * 2016-07-04 2016-12-07 迪思特空气处理设备(常熟)有限公司 A kind of energy-efficient low dew point rotary dehumidifier
CN108528029A (en) * 2018-03-16 2018-09-14 广州黑马科技有限公司 A kind of printing ink drying system
CN109340935A (en) * 2018-11-13 2019-02-15 东莞信易电热机械有限公司 A kind of two-in-series rotary wheel dehumidifying drying system
CN114060972A (en) * 2021-10-20 2022-02-18 瀚润特环保设备(江苏)有限公司 High-temperature heat pump dehumidifier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633791A (en) * 2015-01-14 2015-05-20 杭州福达除湿设备有限公司 Rotary dehumidification system for lithium battery production and dehumidification method thereof
CN104633791B (en) * 2015-01-14 2017-12-12 杭州福达除湿设备有限公司 A kind of dehumidification system for runner and its dehumanization method for lithium battery production
CN106196346A (en) * 2016-07-04 2016-12-07 迪思特空气处理设备(常熟)有限公司 A kind of energy-efficient low dew point rotary dehumidifier
CN108528029A (en) * 2018-03-16 2018-09-14 广州黑马科技有限公司 A kind of printing ink drying system
CN109340935A (en) * 2018-11-13 2019-02-15 东莞信易电热机械有限公司 A kind of two-in-series rotary wheel dehumidifying drying system
CN114060972A (en) * 2021-10-20 2022-02-18 瀚润特环保设备(江苏)有限公司 High-temperature heat pump dehumidifier

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Effective date of registration: 20160718

Address after: 215500 Jiangsu Province, Southeast of Changshu Economic Development Zone No. 8 Jin Lin Lu

Patentee after: SEIBU GIKEN ENVIRONMENTAL PROTECTION ENERGY SAVING EQUIPMENT (CHANGSHU) CO.,LTD.

Address before: Shiga County, Fukuoka, Japan

Patentee before: KABUSHIKIGAISYA SEIBU-GIKEN

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Granted publication date: 20140813

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